/* 全局响应式状态与工具函数 */
const { reactive, computed } = Vue;
const Api = window.VpsApi;
const Fmt = window.VpsFmt;

/* ---------------- 全局状态 ---------------- */
const store = reactive({
  view: 'dashboard',
  assets: [],
  providers: [],
  subdomains: [],
  siteCerts: [],
  overview: {},
  expiring: [],
  serverMetrics: {},
  search: '',
  filterType: '',
  filterStatus: '',
  assetTab: '', // 资产页 TAB：'' 全部 / vps / domain / cloudflare / subscription(付费资产) / ai_agent
  monitorTab: '', // 监控中心 TAB：同上
  dark: localStorage.getItem('vps_dark') === '1',
  loading: false,
  error: '',
  assetModal: { show: false, editing: null, form: null },
  providerModal: { show: false, editing: null, form: null },
});

function applyDark() {
  document.documentElement.classList.toggle('dark', store.dark);
  localStorage.setItem('vps_dark', store.dark ? '1' : '0');
}

/* ---------------- 表单工厂 ---------------- */
function emptyAssetForm() {
  return {
    name: '', asset_type: 'vps', provider: '', provider_id: null, renewal_cycle: 'monthly', renew_url: '', cancel_url: '',
    account: '', expiry_date: '', auto_renew: false, cost: 0, currency: 'USD',
    status: 'active', is_archived: false, remark: '',
    vps_detail: { ip_address: '', tailscale_ip: '', region: '', os: '', cpu_cores: 1, memory_gb: 1, disk_gb: 20, bandwidth_gb: null, ssh_port: 22, panel_url: '', ssh_user: '', login_method: 'key', ssh_key: '', password: '', purpose: '' },
    domain_detail: { domain_name: '', registrar: '', dns_provider: '', cloudflare_account: '', is_using: true, redirect_target: '', bind_asset_id: null },
    ai_detail: { provider: '', api_key: '', plan: '', balance: null, currency: 'USD', monthly_usage: null, monthly_limit: null },
    cloudflare_detail: { account_email: '', sub_type: 'zone', sub_name: '', zone_name: '', status: '' },
  };
}

function buildAssetPayload(f) {
  const p = {
    name: f.name, asset_type: f.asset_type, provider: f.provider,
    provider_id: f.provider_id || null, renewal_cycle: f.renewal_cycle || null,
    renew_url: f.renew_url || null, cancel_url: f.cancel_url || null,
    account: f.account || null, expiry_date: f.expiry_date || null,
    auto_renew: !!f.auto_renew, cost: Number(f.cost) || 0, currency: f.currency,
    status: f.status, is_archived: !!f.is_archived, remark: f.remark || null,
  };
  if (f.asset_type === 'vps') {
    const v = f.vps_detail;
    p.vps_detail = { ip_address: v.ip_address, tailscale_ip: v.tailscale_ip || null, region: v.region || null, os: v.os || null, cpu_cores: Number(v.cpu_cores) || 1, memory_gb: Number(v.memory_gb) || 1, disk_gb: Number(v.disk_gb) || 20, bandwidth_gb: v.bandwidth_gb ? Number(v.bandwidth_gb) : null, ssh_port: Number(v.ssh_port) || 22, panel_url: v.panel_url || null, ssh_user: v.ssh_user || null, login_method: v.login_method || 'key', ssh_key: v.ssh_key || null, password: v.password || null, purpose: v.purpose || null };
  } else if (f.asset_type === 'domain') {
    const d = f.domain_detail;
    p.domain_detail = { domain_name: d.domain_name, registrar: d.registrar || null, dns_provider: d.dns_provider || null, cloudflare_account: d.cloudflare_account || null, is_using: !!d.is_using, redirect_target: d.redirect_target || null, bind_asset_id: d.bind_asset_id || null };
  } else if (f.asset_type === 'ai_agent') {
    const a = f.ai_detail;
    p.ai_detail = { provider: a.provider, api_key: a.api_key || null, plan: a.plan || null, balance: a.balance ? Number(a.balance) : null, currency: a.currency || 'USD', monthly_usage: a.monthly_usage ? Number(a.monthly_usage) : null, monthly_limit: a.monthly_limit ? Number(a.monthly_limit) : null };
  } else if (f.asset_type === 'cloudflare') {
    const c = f.cloudflare_detail;
    p.cloudflare_detail = { account_email: c.account_email || null, sub_type: c.sub_type || 'zone', sub_name: c.sub_name || null, zone_name: c.zone_name || null, status: c.status || null };
  }
  return p;
}

/* ---------------- 数据加载 ---------------- */
async function loadAssets() {
  const params = new URLSearchParams();
  if (store.filterType) params.set('asset_type', store.filterType);
  if (store.filterStatus) params.set('status', store.filterStatus);
  if (store.search) params.set('q', store.search);
  params.set('sort', 'expiry_date'); params.set('order', 'asc');
  store.assets = await Api.get('/assets?' + params.toString());
}
async function loadProviders() { store.providers = await Api.get('/providers'); }
async function loadSubdomains() { store.subdomains = await Api.get('/subdomains'); }
async function loadSiteCerts() { store.siteCerts = await Api.get('/site-certs'); }
async function loadOverview() { store.overview = await Api.get('/stats/overview'); }
async function loadExpiring() { store.expiring = await Api.get('/stats/expiring?days=30'); }
async function loadAll() {
  store.loading = true; store.error = '';
  try { await Promise.all([loadAssets(), loadProviders(), loadSubdomains(), loadSiteCerts(), loadOverview(), loadExpiring()]); }
  catch (e) { store.error = e.message; } finally { store.loading = false; }
}

/* ---------------- 资产操作 ---------------- */
function openAssetCreate(presetType) {
  const form = emptyAssetForm();
  if (presetType) form.asset_type = presetType;
  store.assetModal = { show: true, editing: null, form };
}
function openAICreate(provider) {
  const form = emptyAssetForm();
  form.asset_type = 'ai_agent';
  if (provider) {
    form.provider = provider;
    form.ai_detail.provider = provider;
    const p = store.providers.find(x => x.slug === provider);
    if (p) form.provider_id = p.id;
  }
  store.assetModal = { show: true, editing: null, form };
}
function openAssetEdit(a) {
  const form = emptyAssetForm();
  ['name', 'asset_type', 'provider', 'provider_id', 'renewal_cycle', 'renew_url', 'cancel_url', 'account', 'expiry_date', 'auto_renew', 'cost', 'currency', 'status', 'is_archived', 'remark'].forEach(k => { form[k] = a[k]; });
  if (a.vps_detail) Object.assign(form.vps_detail, a.vps_detail);
  if (a.domain_detail) Object.assign(form.domain_detail, a.domain_detail);
  if (a.ai_detail) Object.assign(form.ai_detail, a.ai_detail);
  if (a.cloudflare_detail) Object.assign(form.cloudflare_detail, a.cloudflare_detail);
  form.vps_detail.ssh_key = ''; form.vps_detail.password = '';
  store.assetModal = { show: true, editing: a.id, form };
}
async function saveAsset() {
  store.error = '';
  const f = store.assetModal.form;
  try {
    const payload = buildAssetPayload(f);
    if (store.assetModal.editing) await Api.put('/assets/' + store.assetModal.editing, payload);
    else await Api.post('/assets', payload);
    store.assetModal.show = false;
    await loadAll();
  } catch (e) { store.error = e.message; }
}
async function deleteAsset(a) {
  if (!confirm('确认删除资产「' + a.name + '」？此操作不可恢复。')) return;
  store.error = '';
  try { await Api.del('/assets/' + a.id); await loadAll(); }
  catch (e) { store.error = e.message; }
}

/* ---------------- 平台操作 ---------------- */
function openProviderCreate() {
  store.providerModal = { show: true, editing: null, form: { slug: '', name: '', name_en: '', category: 'vps', services: '', website: '', console_url: '', sdk_type: '', enabled: true, remark: '', api_config: '' } };
}
function openProviderEdit(p) {
  store.providerModal = { show: true, editing: p.id, form: { slug: p.slug, name: p.name, name_en: p.name_en || '', category: p.category, services: p.services || '', website: p.website || '', console_url: p.console_url || '', sdk_type: p.sdk_type || '', enabled: p.enabled, remark: p.remark || '', api_config: '' } };
}
async function saveProvider() {
  store.error = '';
  const f = store.providerModal.form;
  const payload = { slug: f.slug, name: f.name, name_en: f.name_en || null, category: f.category, services: f.services || null, website: f.website || null, console_url: f.console_url || null, sdk_type: f.sdk_type || null, enabled: !!f.enabled, remark: f.remark || null, api_config: f.api_config || null };
  try {
    if (store.providerModal.editing) await Api.put('/providers/' + store.providerModal.editing, payload);
    else await Api.post('/providers', payload);
    store.providerModal.show = false;
    await loadProviders();
  } catch (e) { store.error = e.message; }
}
async function seedProviders() {
  store.error = '';
  try { const r = await Api.post('/providers/seed', {}); await loadProviders(); alert('已初始化预设平台，新增 ' + r.added + ' 个'); }
  catch (e) { store.error = e.message; }
}
async function deleteProvider(p) {
  if (!confirm('确认删除平台「' + p.name + '」？')) return;
  try { await Api.del('/providers/' + p.id); await loadProviders(); }
  catch (e) { store.error = e.message; }
}

/* ---------------- 服务器监控 ---------------- */
async function viewServer(a) {
  try {
    const [metrics, info, checks, security] = await Promise.all([
      Api.get('/monitor/' + a.id + '/metrics?limit=200'),
      Api.get('/monitor/' + a.id + '/info'),
      Api.get('/monitor/' + a.id + '/security'),
      Api.get('/monitor/' + a.id + '/security-score'),
    ]);
    store.serverMetrics = { asset: a, metrics, info, checks, security };
  } catch (e) { store.serverMetrics = { asset: a, metrics: [], info: null, checks: [], security: null }; }
  // 通过 hash 路由切换视图，保证刷新/分享链接后能回到 servers 视图
  if (window.location.hash !== '#servers') {
    window.location.hash = '#servers';
  } else {
    store.view = 'servers';
  }
}

/* ---------------- 设置 ---------------- */
const settings = reactive({ apiKey: Api.getApiKey(), saved: false });
function saveSettings() { Api.setApiKey(settings.apiKey); settings.saved = true; setTimeout(() => settings.saved = false, 2000); }

function normalizedMonthly(cost, cycle) {
  if (!cost) return 0;
  if (cycle === 'yearly') return cost / 12;
  if (cycle === 'quarterly') return cost / 3;
  return cost;
}